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1 | /** | |
2 | * bfd.h: BFD definitions and structures | |
3 | * | |
4 | * @copyright Copyright (C) 2015 Cumulus Networks, Inc. | |
5 | * | |
6 | * This file is part of GNU Zebra. | |
7 | * | |
8 | * GNU Zebra is free software; you can redistribute it and/or modify it | |
9 | * under the terms of the GNU General Public License as published by the | |
10 | * Free Software Foundation; either version 2, or (at your option) any | |
11 | * later version. | |
12 | * | |
13 | * GNU Zebra is distributed in the hope that it will be useful, but | |
14 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | * General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with GNU Zebra; see the file COPYING. If not, write to the Free | |
20 | * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA | |
21 | * 02111-1307, USA. | |
22 | */ | |
23 | ||
24 | #ifndef _ZEBRA_BFD_H | |
25 | #define _ZEBRA_BFD_H | |
26 | ||
27 | #include "lib/json.h" | |
28 | ||
29 | #define BFD_CMD_DETECT_MULT_RANGE "<2-255> " | |
30 | #define BFD_CMD_MIN_RX_RANGE "<50-60000> " | |
31 | #define BFD_CMD_MIN_TX_RANGE "<50-60000>" | |
32 | ||
33 | #define BFD_DEF_MIN_RX 300 | |
34 | #define BFD_MIN_MIN_RX 50 | |
35 | #define BFD_MAX_MIN_RX 60000 | |
36 | #define BFD_DEF_MIN_TX 300 | |
37 | #define BFD_MIN_MIN_TX 50 | |
38 | #define BFD_MAX_MIN_TX 60000 | |
39 | #define BFD_DEF_DETECT_MULT 3 | |
40 | #define BFD_MIN_DETECT_MULT 2 | |
41 | #define BFD_MAX_DETECT_MULT 255 | |
42 | ||
43 | #define BFD_FLAG_PARAM_CFG (1 << 0) /* parameters have been configured */ | |
44 | #define BFD_FLAG_BFD_REG (1 << 1) /* Peer registered with BFD */ | |
45 | ||
46 | #define BFD_STATUS_UNKNOWN (1 << 0) /* BFD session status never received */ | |
47 | #define BFD_STATUS_DOWN (1 << 1) /* BFD session status is down */ | |
48 | #define BFD_STATUS_UP (1 << 2) /* BFD session status is up */ | |
49 | ||
50 | struct bfd_info | |
51 | { | |
52 | u_int16_t flags; | |
53 | u_int8_t detect_mult; | |
54 | u_int32_t desired_min_tx; | |
55 | u_int32_t required_min_rx; | |
56 | time_t last_update; | |
57 | u_int8_t status; | |
58 | }; | |
59 | ||
60 | extern struct bfd_info * | |
61 | bfd_info_create(void); | |
62 | ||
63 | extern void | |
64 | bfd_info_free(struct bfd_info **bfd_info); | |
65 | ||
66 | extern int | |
67 | bfd_validate_param(struct vty *vty, const char *dm_str, const char *rx_str, | |
68 | const char *tx_str, u_int8_t *dm_val, u_int32_t *rx_val, | |
69 | u_int32_t *tx_val); | |
70 | ||
71 | extern void | |
72 | bfd_set_param (struct bfd_info **bfd_info, u_int32_t min_rx, u_int32_t min_tx, | |
73 | u_int8_t detect_mult, int defaults, int *command); | |
74 | extern void | |
75 | bfd_peer_sendmsg (struct zclient *zclient, struct bfd_info *bfd_info, | |
76 | int family, void *dst_ip, void *src_ip, char *if_name, | |
77 | int ttl, int multihop, int command, int set_flag); | |
78 | ||
79 | extern const char * | |
80 | bfd_get_command_dbg_str(int command); | |
81 | ||
82 | extern struct interface * | |
83 | bfd_get_peer_info (struct stream *s, struct prefix *dp, struct prefix *sp, | |
84 | int *status); | |
85 | ||
86 | const char * | |
87 | bfd_get_status_str(int status); | |
88 | ||
89 | extern void | |
90 | bfd_show_param(struct vty *vty, struct bfd_info *bfd_info, int bfd_tag, | |
91 | int extra_space, u_char use_json, json_object *json_obj); | |
92 | ||
93 | extern void | |
94 | bfd_show_info(struct vty *vty, struct bfd_info *bfd_info, int multihop, | |
95 | int extra_space, u_char use_json, json_object *json_obj); | |
96 | ||
97 | #endif /* _ZEBRA_BFD_H */ |